The specific analysis of syphilis detected after pregnancy is as follows: 1. 2 years ago, syphilis and then after a full course of penicillin treatment, routine testing, normal waiting for delivery can be. (1) TPPA+ TRUST-, one month later, recheck and test the spouse and other sexual partners at the same time One month later, the same results as above and the spouse and other sexual partners with negative syphilis antibody test, safer, routine testing, normal waiting for delivery. Those with TRUST+ results after one month are newly infected and should be treated for syphilis. In addition, to ensure safety, both of the above results can be treated with benzathine penicillin three times in the third and seventh month of pregnancy respectively. (2) TPPA+ TRUST+, depending on the TRUST titer, a higher TRUST titer of 1:8 and above, and a partner who is also antibody positive, increases the likelihood of fetal infection. If the TRUST titer is not high and the partner is also antibody negative, the fetus is unlikely to be infected.